Electric heater



Feb. 21,- 1928.

- W; SHEPHERD ELECTRIC HEATER -'F a D ,"7, 1925 i Patented Feb. 21,1928.

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ELECTRIC HEATER.

Application filed December 7, 1828. Serial No. 158,091

This invention relates to and has for one of its objects to provide a novel, simple and highly eificient electric heater which shall be adapted to be used for the purpose of heat- "6 ing all or. one of the rooms of a. building and which shall comprise a body provided in its top and bottomwith openings to permit air to circulate therethrough, heating units arranged to provide a substantially annular heatingizone, and means for insuring the passage of the air in-equal volumes through each portion of the heating zone.

A further objectof the invention is to provide aheate'r. of the character set forth- 16 which Shall comprise means for forcing air through the body and means for insuring the passage 7 of the air in equal volumes through the outlet openings with which the heater will beprovided when constructed on' a scale large enough to beat all the rooms of a buildin and through the annular outlet opening withwhich the heater will be provided when constructed on -a smaller scale for heating a single room.

The invention is hereinafter fully de scribed and claimed, and illustrated in the accompanying drawings, wherein:

- F igurel is a vertical sectional view illustrating the application of the,heater for the purpose of heating all the rooms of a build- Figure 2 is atop plan View of the heater,

Figure 3is a sectional view taken on the horizontal plane indicated by the line 33 of Figure 1, v

Figure 4 is a similar view taken-on thehorizontal plane indicated by the line 4-4 a of Figure 1, and c i Figure 5 is a sectional view taken on a ing a single room; a V 1 Referring to the drawings by-reference characters, 1 designatesthe furnace room, 2 a living room and 3 a floor of'a building.

The furnacecomprises a body 4 which is of cylindrical formation and provided in its bottom 5 with an intake opening 6 and in its top 7 with outlet openings 8. A cold airflue 9 communicates with the intake opening 6, and hot air pipes 10 communicate with the outlet openings 8. The hot air pipes 10 discharge into the room 2 above thefioor 3 ajereof, and are provided with reglsters 11 Return lines 12 communicate withthe room plane extending vertically and centrally through the heater adapted for use in heat at any suitable or appropriate construction.

the cold air flue 94 A valve 14 is pivoted as at 15 within the cold air flue 9 outwardly beyond the return flue 13. {The .valve 14 is shown in closed position, andwhen in .this position contacts with a stop 16. Any suitable orap'propriate means, not shown, may be provided in order to permit the damper 14 to be moved into-and supported in opened position, the damper being adapted when -relea$ed to gravitate to closed position. A fan 17 is arranged-withinthe intake opening 6 and when in'operation'with the damper 14 closed draws air fronif the room 2 into the body 4 by wayof the flues 12, 13 and 9 and .returns the air to the room in a heated condition by way of thepipes 10. Registers 18 -of any well known or appropriate construction areco'nnected to the intake ends of the "fines 12, and; togetherwith the' registers 11 proiride means for controlling the amount of air taken'from'and returned to the room 2. When the damper 14 is closed air from outside'of the building does not enter the heattion as to permit the damper to be supported in fully or partly opened position in order that any desired amount of. air from outside the building may be permitted to enter the heatingsystem. The fan 17 is operated by an electric-motor 19 which is supported bya bracket 20. -To insure the entrance of equal volumes of heated, air into the several pipes 10, an inverted conical deflector 21 is secured to and depends from the top 7. The 'outlet openings 8 are arranged in an. annular row, and the deflector 21 isarranged within the row of openings.

Heating units 22, 23, 24, 25 and 26 are arranged within the body 4. The heating unit 22 is horizontally disposed and ar ranged within the center of the body 4, and comprises a circular insulating body 27 and a resistance element 28; The heating units 23'26 arevertically disposed and have an annular arrangement with respect to the heatingunit 22. Each of the heating units ing system. The means forcontrolling the a damper will preferably be of such construca resistance elements 30, The heating unit 22 is supported upon an inverted conical deffiector 31 whichin turn is sup rted from the body 4 by bracket arms 32.; e heating units 28'261are supported b an annular flange 33 secured to and within the body 4 and occupying a horizontal position. The

A heating units 2226 provide an annular heating zone 34 through which the air'passes on its way through t e body 4, and'the re sistance elements are exposed for contact with .theiair as it passes through the heating 'zone. fThe deflector 31 insures the passage ofthe air in equal volumes through each andevery part ofthe heating zone 34. The

resistance elements 28 and 30 may be c0nnected 1n ser es or in parallel and to a source of current supply by .leads 35. The body 4 is provided with a lining 36 of asbestos or other non-heat conducting material.

The heater as shown in Figure 5 is adapted to be used for-the purpose of heating one roonrofabuilding. This heater differs fromthe one shown in Figures 1-4 only in that it is providedwith legs 37 and is not provided,

" .with flues and hot air pipes. The remaining 'parts of this heater are designated by the same reference characters applied to the corresponding parts .of the heater shown in Figures 1-4.

From the foregoingv description, taken in connection with-t e accompanying drawings, the advantages ofthe construction and of the method-of operation willbe readily apparent to those skilled in the art to which the invention appertains. While I have described the principle of operation of the invention, together withthe devices which I lets, a motor driven fan arranged in the in let, a conical deflector secured to the top centrally of the outlets, a second conical deflector supported within the body below said first named deflector, and heating units arranged within' the body between the deflectors and providing an annular heating zone. Y 2. An electric heater comprising abody provided with an inletan'd an outlet, a'

downwardly tapering deflector arranged within the body between the inlet and outlet, a second downwardly tapering deflector "in its top with an annular series of air outarranged within' the body directly above said first deflectonand a series of heating elements arranged within the body between the deflectors and laterally beyond the same.

An electric heater comprising a body provided with an inlet and an outlet, a downwardly tapering deflector arranged within the body between the inlet and outlet, a second downwardly tapering deflector arranged within-the body directly above said first deflector, a series of heating elements arranged within the body between the deflectors and laterally beyond the same, and another heating element arranged within the body between and in alinement with the de-' flectors. I

4. An electric heater comprising a body provided with an inlet and an outlet, an annular series of heatin units, a heating unit arranged centrallywit res ect to said series of units and cooperating t herewith to provide an annular heating zone, and a de flector located immediately below and cen- I trally of the zone. I

In testimony whereof I afiix my signature.

' GEORGE w. SHEPHERD. 

